1. The /q/{code} guest menu returned HTTP 500 on every load. Root cause:
menu-item-model-viewer.tsx did a top-level `import "@google/model-viewer"`,
a browser-only lib that touches `self` at module evaluation. Next pulled
it into the server module graph (page → qr-guest-menu → qr-menu-3d-sheet →
model-viewer) and SSR crashed with "self is not defined". Now the library
is imported lazily inside useEffect (client-only); a poster placeholder
shows until the custom element registers. Verified /q/* now returns 200.
2. Removed the "discover" (browse other cafés) item from the café owner
sidebar — café discovery belongs in Koja, not the owner panel. The owner
still manages their OWN Koja listing from Settings.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
soroush.asadi
76d4434581